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Finding the Fourth Proportional to 48,479.60, 72,723 and 35,357.60

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Solution

The fourth proportional to 48,479.60, 72,723 and 35,357.60 is: 53,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,479.60 : 72,723 = 35,357.60 : x
  2. Step 2: Convert to fraction form
    48,479.60/72,723 = 35,357.60/x
  3. Step 3: Cross multiply
    48,479.60x = 72,723 × 35,357.60
  4. Step 4: Simplify right side
    48,479.60x = 2,571,310,744.80
  5. Step 5: Solve for x
    x = 2,571,310,744.80/48,479.60
  6. Step 6: Final answer
    x = 53,039.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.